get_remote_service_record is never called from JNI

packages/apps/Bluetooth$ grep get_remote_service_record -r .
packages/apps/Bluetooth$

seriously wtf

this means we can now start deleting other stuff that
this was anchoring

Bug: 159815595
Tag: #refactor
Test: compile & verify basic functions working
Change-Id: Id3fead35d56c3783ba07e98d2bdf6669aa5b2371